EP0354412B1 - Verfahren zur Herstellung von hochreinem Ebselen - Google Patents

Verfahren zur Herstellung von hochreinem Ebselen Download PDF

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Publication number
EP0354412B1
EP0354412B1 EP89113827A EP89113827A EP0354412B1 EP 0354412 B1 EP0354412 B1 EP 0354412B1 EP 89113827 A EP89113827 A EP 89113827A EP 89113827 A EP89113827 A EP 89113827A EP 0354412 B1 EP0354412 B1 EP 0354412B1
Authority
EP
European Patent Office
Prior art keywords
acid
dichloroethane
reaction
solution
diselenosalicylic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89113827A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0354412A2 (de
EP0354412A3 (en
Inventor
Bernd-Rainer Dr. Günther
Rainer Dr. Losch
Klaus Dr. Steiner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
A Natterman und Cie GmbH
Original Assignee
A Natterman und Cie GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by A Natterman und Cie GmbH filed Critical A Natterman und Cie GmbH
Publication of EP0354412A2 publication Critical patent/EP0354412A2/de
Publication of EP0354412A3 publication Critical patent/EP0354412A3/de
Application granted granted Critical
Publication of EP0354412B1 publication Critical patent/EP0354412B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D293/00Heterocyclic compounds containing rings having nitrogen and selenium or nitrogen and tellurium, with or without oxygen or sulfur atoms, as the ring hetero atoms
    • C07D293/10Heterocyclic compounds containing rings having nitrogen and selenium or nitrogen and tellurium, with or without oxygen or sulfur atoms, as the ring hetero atoms condensed with carbocyclic rings or ring systems
    • C07D293/12Selenazoles; Hydrogenated selenazoles

Definitions

  • the invention relates to a process for the preparation of high-purity Ebselen (2-phenyl-1,2-benzisoselenazol-3 (2H) -one) of the formula I.
  • Ebselen is a pharmacologically active and extremely non-toxic selenium organic compound with valuable pharmacological, eg anti-inflammatory properties (N. Dereu, E. Graf; Drugs of the Future Vol. 9, No. 10, 741 (1984)).
  • Ebselen has been manufactured as follows: Selenium is in an alkaline aqueous solution with sodium formaldehyde sulfoxylate (Rongalit; trademark of BASF) according to L.Tschugaeff and W. Chlopin, Ber. 47 , 1269-1275 (1914) reduced in alkaline solution at temperatures of 70-80 ° C. and the sodium diselenide obtained crystallized out by cooling the mother liquor obtained; the sodium diselenide obtained was obtained according to A. Ruwet and M. Renson, Bull. Soc. Chim.
  • the object of the present invention is to find a method by which Ebselen can be produced with high purity simply, safely and inexpensively.
  • the process according to the invention is based on the known reduction of metallic selenium with the aid of sodium formaldehyde sulfoxylate (Rongalit; trademark of BASF) in aqueous alkaline solution to sodium selenide, conversion of the sodium selenide obtained with diazotized anthranilic acid in alkaline medium to the sodium salt of o-diselenosalicylic acid , Reaction of the free o-diselenosalicylic acid with excess thionyl chloride to form the o-chloroselenobenzoic acid chloride and reaction of the chloroselenobenzoic acid chloride with aniline in an organic solvent.
  • the anhydrous suspension is mixed with 13 ml of ethyl 99% dimethylformamide. Under reflux temperature and vigorous stirring 5.94 kg (49.45 mol) of thionyl chloride z. Synth ⁇ 99% dropped in as quickly as possible.
  • the amount of thionyl chloride must be adjusted to the dry weight of o-diselenosalicylic acid calculated above (molar ratio 1: 4.4).
  • the mixture is stirred under reflux for a further 1 hour (end of gas evolution).
  • the 1,2-dichloroethane is stirred distilled off (bath temperature approx. 140 o C); then it is dried in a water ring vacuum (approx. 110 mbar).
  • the precipitated product is filtered off, washed twice with about 15 kg of water and sucked dry.
  • the last final wash water must have a pH of 7-7.5.
  • Rohebselen The moist Rohebselen is dried to constant weight in a vacuum drying cabinet at 80 o C and 15 mg Hg.
  • Rohebselen Yield 4.8 kg dry weight
  • Recrystallization from butanone-2 4.3 kg of dried raw lees are mixed in a reactor with 86 l of butanone-2 in a chemically pure manner and dissolved with refluxing and stirring.
  • 0.43 kg of activated charcoal are added, after cooling to 70 o C and stirred for 30 minutes under reflux.
  • the clear, light yellow filtrate is cooled to 20 ° C. with stirring.
  • the precipitate is filtered off and dried in a vacuum drying cabinet at 60 o C and 15 mm Hg to constant weight. Yield: 3.0 kg dry weight - mp: 181 - 183 o C.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Saccharide Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Steroid Compounds (AREA)
EP89113827A 1988-08-10 1989-07-27 Verfahren zur Herstellung von hochreinem Ebselen Expired - Lifetime EP0354412B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3827093 1988-08-10
DE3827093A DE3827093A1 (de) 1988-08-10 1988-08-10 Verfahren zur herstellung von hochreinem ebselen

Publications (3)

Publication Number Publication Date
EP0354412A2 EP0354412A2 (de) 1990-02-14
EP0354412A3 EP0354412A3 (en) 1990-07-11
EP0354412B1 true EP0354412B1 (de) 1995-01-18

Family

ID=6360566

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89113827A Expired - Lifetime EP0354412B1 (de) 1988-08-10 1989-07-27 Verfahren zur Herstellung von hochreinem Ebselen

Country Status (12)

Country Link
US (1) US5008394A (fi)
EP (1) EP0354412B1 (fi)
JP (1) JPH0830064B2 (fi)
AT (1) ATE117297T1 (fi)
CA (1) CA1333175C (fi)
DE (2) DE3827093A1 (fi)
DK (1) DK173836B1 (fi)
ES (1) ES2066811T3 (fi)
FI (1) FI92694C (fi)
IE (1) IE65777B1 (fi)
NO (1) NO177142C (fi)
PT (1) PT91414B (fi)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3937169A1 (de) * 1989-11-08 1991-05-16 Nattermann A & Cie Benzylselenobenzamide von anilinen und benzylaminen
RU2143898C1 (ru) * 1993-10-27 2000-01-10 Дайити Фармасьютикал Ко., Лтд. Гранулированный фармацевтический препарат и водная суспензия на его основе
DE4422237A1 (de) 1994-06-24 1996-01-04 Gruenenthal Gmbh Verwendung von Lactamverbindungen als pharmazeutische Wirkstoffe
CN1166651C (zh) * 2001-06-08 2004-09-15 北京大学药学院 具有抗炎和抗肿瘤作用r-双或糖苯丙异硒唑取代化合物
WO2003010153A1 (en) * 2001-07-26 2003-02-06 Samsung Electronics Co. Ltd. N-alkyl-n-phenylhydroxylamine compounds containing metal chelating groups, their preparation and their therapeutic uses
WO2003010143A1 (en) * 2001-07-26 2003-02-06 Samsung Electronics Co., Ltd. Dialkylhydroxybenzoic acid derivatives containing metal chelating groups and their therapeutic uses
WO2003010154A1 (en) * 2001-07-26 2003-02-06 Samsung Electronics Co. Ltd. Seleno compounds containing nitrone moiety, their preparation and their therapeutic uses
US7541365B2 (en) 2001-11-21 2009-06-02 Millennium Pharmaceuticals, Inc. Chemokine receptor antagonists and methods of use therefor
TWI291467B (en) 2002-11-13 2007-12-21 Millennium Pharm Inc CCR1 antagonists and methods of use therefor
US20080293777A1 (en) * 2007-05-23 2008-11-27 Erlanson Daniel A Weight Loss Treatment
WO2010056710A1 (en) * 2008-11-11 2010-05-20 Biovista, Inc. Compositions and methods for treating eye diseases
US10058542B1 (en) 2014-09-12 2018-08-28 Thioredoxin Systems Ab Composition comprising selenazol or thiazolone derivatives and silver and method of treatment therewith
AU2017267732B2 (en) 2016-05-18 2023-04-13 Sound Pharmaceuticals Incorporated Treatment of Meniere's disease
US20230218644A1 (en) 2020-04-16 2023-07-13 Som Innovation Biotech, S.A. Compounds for use in the treatment of viral infections by respiratory syndrome-related coronavirus
CN113105379A (zh) * 2021-03-02 2021-07-13 暨南大学 一种以吊白块为还原剂制备硒代胱氨酸的方法及装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3027073C2 (de) * 1980-07-17 1985-03-07 A. Nattermann & Cie GmbH, 5000 Köln Pharmazeutische Präparate, enthaltend 2-Phenyl-1,2-benzisoselenazol-3(2H)-on
DE3226286A1 (de) * 1982-07-14 1984-01-19 A. Nattermann & Cie GmbH, 5000 Köln Cycloalkylderivate von benzisoselenazolonen, verfahren zu ihrer herstellung und diese enthaltende pharmazeutische praeparate
DE3407511A1 (de) * 1984-03-01 1985-09-05 A. Nattermann & Cie GmbH, 5000 Köln Benzisoselenazolthione, verfahren zu ihrer herstellung und diese enthaltende pharmazeutische praeparate

Also Published As

Publication number Publication date
JPH02124880A (ja) 1990-05-14
ES2066811T3 (es) 1995-03-16
DK390389A (da) 1990-02-11
DK173836B1 (da) 2001-12-10
DK390389D0 (da) 1989-08-09
DE58908900D1 (de) 1995-03-02
FI893684A0 (fi) 1989-08-03
EP0354412A2 (de) 1990-02-14
DE3827093A1 (de) 1990-02-15
PT91414A (pt) 1990-03-08
FI893684A (fi) 1990-02-11
PT91414B (pt) 1995-05-04
IE65777B1 (en) 1995-11-15
FI92694B (fi) 1994-09-15
ATE117297T1 (de) 1995-02-15
NO893169L (no) 1990-02-12
US5008394A (en) 1991-04-16
JPH0830064B2 (ja) 1996-03-27
NO177142C (no) 1995-07-26
IE892468L (en) 1990-02-10
NO177142B (no) 1995-04-18
NO893169D0 (no) 1989-08-04
CA1333175C (en) 1994-11-22
EP0354412A3 (en) 1990-07-11
FI92694C (fi) 1994-12-27

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